It turns out, the Mercury Bobcat is simply a rebadged Ford Pinto! While the Pinto was made from 1971-1980, the Bobcat was only made from 1974-1980.
This one had a lot stripped from it. But not much from the engine.
I have no idea what size engine is in this one. But I did find that the MPG package means it has different gearing ratios (and that's all I could find about it).
Interior is toast.